diff --git a/tech_docs/lab/ipv6_lab.md b/tech_docs/lab/ipv6_lab.md
index 40bc483..1f952ad 100644
--- a/tech_docs/lab/ipv6_lab.md
+++ b/tech_docs/lab/ipv6_lab.md
@@ -1,27 +1,30 @@
 ```mermaid
 graph TD
-  subgraph Host Machine (Linux + LXD)
+  %% Host and Bridges
+  subgraph Host_Machine_LXD
     H0[LXD Host]
-    H0 --> B1[br-lan<br>IPv4/IPv6 Dual-Stack LAN Bridge]
-    H0 --> B2[br-wan<br>Simulated Internet]
+    H0 --> B1[br-lan - IPv4/IPv6 LAN]
+    H0 --> B2[br-wan - Simulated WAN]
   end
 
-  subgraph LAN Zone
-    B1 --> R1[Router<br>VyOS or Ubuntu w/ radvd, DHCPv6, NAT64]
-    R1 --> C1[Client1<br>IPv6-only]
-    R1 --> C2[Client2<br>Dual-Stack]
-    R1 --> C3[Client3<br>IPv4-only]
-    R1 --> S1[WebServer<br>Dual-Stack<br>Nginx + DNS]
+  %% LAN Zone
+  subgraph LAN_Zone
+    B1 --> R1[Router - VyOS/Ubuntu (radvd, DHCPv6, NAT64)]
+    R1 --> C1[Client1 - IPv6-only]
+    R1 --> C2[Client2 - Dual-Stack]
+    R1 --> C3[Client3 - IPv4-only]
+    R1 --> S1[WebServer - Dual-Stack NGINX + DNS]
   end
 
-  subgraph WAN Zone (Simulated Internet)
-    B2 --> ISP[IPv6+IPv4 Simulation Router<br>(can be simple Ubuntu router)]
-    ISP --> EXT[External IPv6 Service<br>(e.g., public web or tunnelbroker)]
+  %% WAN Zone
+  subgraph WAN_Zone
+    B2 --> ISP[ISP Router (simulated)]
+    ISP --> EXT[External IPv6 Service]
   end
 
-  %% Connections
-  R1 -->|Default route| ISP
-  C1 -->|NAT64| R1
-  C3 -->|IPv4 DHCP| R1
-  C2 -->|SLAAC + DHCPv6| R1
+  %% Logical Routing
+  R1 --> ISP
+  C1 --> R1
+  C2 --> R1
+  C3 --> R1
 ```
\ No newline at end of file